19917260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90533}}^1$

素因数の和:90553

約数の個数: 24

約数和(自身を含む): 45629136

約数和(自身を除く): 25711876

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90533, 181066, 362132, 452665, 905330, 995863, 1810660, 1991726, 3983452, 4979315, 9958630, 19917260]

約数ペア:

[(1, 19917260), (2, 9958630), (4, 4979315), (5, 3983452), (10, 1991726), (11, 1810660), (20, 995863), (22, 905330), (44, 452665), (55, 362132), (110, 181066), (220, 90533)]